无标签的代谢光学生物标志物可以实时跟踪干细胞命运转变
Hao Zhou1, Irene Li1, Charles S Bramlett2
1Department of Biomedical Engineering, University of Southern California, Los Angeles, CA 90089, USA.
Science advances
|May 8, 2024
概括
我们开发了一种无标签的代谢光学度量,可以实时跟踪干细胞的命运. 这种方法增强了对造血干细胞分化的理解,并改善了生物制造过程.
科学领域:
- 生物技术是生物技术.
- 细胞生物学 细胞生物学
- 生物医学工程 生物医学工程
背景情况:
- 追踪干细胞命运对于发展和生物制造至关重要.
- 目前的方法具有破坏性,缺乏实时监控能力.
研究的目的:
- 建立一个实时,无标签的方法来监测干细胞命运过渡.
- 识别与造血干细胞 (HSC) 分化相关的代谢光学生物标志物.
主要方法:
- 使用光终身成像显微镜 (FLIM) 进行无标签成像.
- 员工使用特征提取和机器学习进行数据分析.
- 开发了一种代谢光学度量 (MOM) 和代谢干度得分.
主要成果:
- 鉴定出56种与高细胞分化相关的代谢光学生物标记 (MOB) 特性.
- 标志着HSC命运过渡,包括双叉血统选择.
- 量化了"代谢干性",并揭示了它在分裂模式和HSC维护中的作用.
结论:
- 代谢光学分析可实现实时,单细胞干细胞命运跟踪.
- 这种方法为HSC的发展和ex vivo维护提供了洞察力.
- 该方法有可能优化干细胞生物制造.
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